56results about How to "Easy offline" patented technology

The invention discloses a modularized permanent magnet synchronous generator, comprising a rotor yoke, an rare earth permanent magnet, a triphase stator winding and a stator core, wherein the permanent magnet is evenly adhered on the inner surface of the rotor yoke, the stator tooth number of the stator core is two more than the piece number of the permanent magnet; a slot insulation layer is cladded on the stator teeth, the triphase stator winding is wound outside the slot insulation layer; the stator teeth of the stator core are evenly divided into six parts, winding of each phase is provided with two opposite parts and wounded on the corresponding slot, out-phase windings are only wounded in the six slots between two adjacent parts and same-phase windings are wounded in the rest of the slots. The invention can overcome the defects such as the large tooth space of the traditional permanent magnet synchronous generator and the like. Meanwhile, as the special centralized winding is utilized, the generator of the invention can greatly improve sine degree of voltage waveforms, reduce generator copper loss and improve generator power density.

The invention provides a permanent magnet synchronous machine (PMSM) possessing an assembled magnetic effect. The PMSM comprises a stator and a rotor. Air gaps exist between the stator and the rotor. The stator includes a stator core and a stator winding. The rotor includes a rotor core, a rotating shaft and permanent magnet steel. The stator winding is a centralized winding. The rotor is an eccentric rotor. Ends of the permanent magnet steel are directly connected with each other. The air gaps between the stator and the rotor are non-uniform air gaps. The invention has the following positive effects that: (1) distribution of air-gap flux density can be optimized through improving a rotor structure and the air gap flux can be very close to a sinusoidal waveform by using the non-uniform air gaps; (2) magnetic flux leakage on the ends can be effectively reduced because the ends of the permanent magnet steel are directly connected with each other, and simultaneously a magnetic isolation bushing is not needed to be installed on a rotating shaft side so that a requirement of a rotating shaft material can be reduced, wherein the rotating shaft can adopt a magnetic conductive material and/or a non magnetic conductive material.

The invention relates to a flat knitting machine needle comprising a needle bar, a needle latch and a needle end. One end of the needle bar bends to form a needle hook, the other end of the same forms the needle end, and the needle latch is pivoted at the front end of the needle bar to be in formation of opening or closing with the needle hook; when the needle latch looses thread, the perpendicular distance between the tip a of the needle latch and the top end d at an elastic place where the needle latch is pivoted to the needle bar ranges from 1.5mm to 1.8mm; the perpendicular distance between the tip a of the needle latch and the top end f at a place where the needle latch is pivoted to the needle bar ranges from 1.8mm to 2mm; when the needle latch looses the thread, a certain camber is formed on the opposite side of the needle latch on the needle bar; when the needle latch and the needle hook are closed, the needle latch forms a V-shaped included angle with the needle hook, and the needle latch faces upwards relative to a horizontal line; the perpendicular distance between the tip a of the needle latch and a bent point c of the needle hook is 0.64mm; the distance between the tip a of the needle hook and a bent center b of the needle hook is 4.49mm; the flat bit length of circle expanding piece on the needle bar is 20mm. By the arrangement, the defects that an existing needle is hard to loosen from the thread, less easily to pick up, prone to spewing and the like are overcome, and the flat knitting machine needle is more stable in performance, so that operating efficiency is improved.

The invention provides a conductor section and a stator assembly with the same, and a motor. The conductor sections are adapted to be inserted into the same slot layer of different stator slots of a stator core; each conductor section is formed in a general U-shaped shape and comprises a bending portion, and a first groove inner portion and a second groove inner portion which are connected to thebending portion separately; the end part of the first groove inner portion is connected with a first welding part; the end part of the second groove inner portion is connected with a second welding part, wherein the free ends of the first welding part and the second welding part are both provided with chamfering parts; the bending part comprises a first layer section, a second layer section, and aconnecting section connected between the first layer section and the second layer section, wherein one of the first layer section and the second layer section is twisted, relative to the connecting section, in the radial direction of the stator assembly, or the first layer section and the second layer section are twisted, relative to the connecting section, in a direction opposite to the radial direction of the stator assembly separately. According to the conductor section provided by the embodiments of the invention, the offline is reliable, and the welding is convenient.

The invention discloses a disk-type iron core and a disk-type motor. The disk-type iron core comprises an iron core pedestal which is in a disk-shaped structure, a plurality of first iron core tooth portions and a plurality of second iron core tooth portions, wherein the plurality of the first iron core tooth portions are arranged on an end surface of the iron core pedestal along a circumferentialdirection, and a first groove is arranged between the adjacent first iron core tooth portions; each second iron core tooth portion and the corresponding first iron core tooth portion are spliced together to form an iron core tooth for installing a coil, a second groove is arranged between the adjacent second iron core tooth portions, and each second groove and the corresponding first groove forma coil groove. By using the disk-type iron core, each second iron core tooth portion and the corresponding first iron core tooth portion are spliced together to form the iron core tooth for installingthe coil, and therefore, the coil can be embedded in a coil groove between the independent first iron core tooth portion and the independent second iron core tooth portion so that winding inserting is convenient, assembling difficulty of the coil is reduced, and the assembling efficiency is improved.

The invention provides a high-specific-gravity permanent magnet brushless direct-current gyro motor which comprises a rotor component and a stator component. The stator component comprises a stator coil, a stator magnetic core and a shaft. The stator magnetic core is disposed on the boss in the middle of the shaft. The stator coil is disposed on the excircle of the stator magnetic core. The rotor component comprises a rotor ring, a magnetic steel component and an end cover. The rotor magnetic steel component is disposed outside the stator coil. The rotor ring is disposed on the excircle of the rotor magnetic steel component. Bearing inner rings are sleeved on two sides of the boss of the shaft. A bearing outer ring is disposed on an end cover. The high-specific-gravity permanent magnet brushless direct-current gyro motor has the advantages that the rotor ring is made by tungsten-based high-specific-gravity alloy so as to increase the rotational inertia of a rotor and lower the rotation speed of the motor under the set angular momentum value; soft magnetic ferrite is high in resistivity, low in eddy current loss, and low in magnetic loss; the stator magnetic core without an inserting coil slot is free of slot effect, and the motor is stable in operation and low in noise; the two-phase brushless direct-current motor using counter potential control is low in power consumption, stable in rotation speed, low in noise, long in service life and applicable to high-temperature and low-temperature environments.

A permanent-magnet brushless direct-current hub motor having high efficiency and low material loss for an electric vehicle comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a fixed support and a stacked stator steel sheet, the stacked stator steel sheet is formed by laminating a plurality of silicon steel sheets and comprises tooth parts and a tooth groove part, the tooth part comprise tooth ribs and a tooth yoke, the tooth groove part is composed of a semi-closing inner cavity formed between every two tooth parts, a single silicon steel sheet is provided with an automatic-buckling groove, the tooth groove part is of a semi-closing pear-shaped groove structure, a first Hall groove, a second Hall groove and a third Hall groove are arranged on the stacked stator steel sheet, and the stator assembly comprises a rim arranged at the periphery, a magnetic conduction ring and a plurality of magnetic steel sheets. By the permanent-magnet brushless direct-current hub motor, the pole groove ratio is optimized, the performance is improved, the usage of magnetic steel and an enameled wire is reduced, cost is saved, the installation positions of the Hall grooves and the winding mode are optimized, the production efficiency is improved, and the installation accuracy is enhanced.

The invention discloses a cutting machine motor production off-line device for road hedge cleaning, which comprises a device body, a base is arranged at the bottom of the device body, a fixed block is arranged on the right side of the base, and a rotating pressing block is arranged on the fixed block , an off-line structure is set above the base, a stepping motor is set inside the base, a jog button and a speed control knob are set on the base, a limit support rod is set on the upper right of the base, and a limit support rod is set on the limit support rod. Pressing plate, the end of the limiting pressing plate is provided with an arc-shaped groove, the right side of the limiting supporting rod is provided with a screw rod, and the top of the limiting pressing plate is provided with a rocking wheel; the present invention is simple in structure, easy to use, and reduces work The labor intensity of personnel, fast off-line speed, high work efficiency, and less damage to the paint film, and the stator with a high slot full rate is also very convenient to off-line, avoiding waste, saving a lot of resources and reducing costs.

The invention discloses a carpet overedge machine head, which comprises a cabinet, a base, a transmission crankshaft, a needle plate, cloth feeding teeth, a needle, an upper bent needle, a lower bent needle, an upper threading device and a lower threading device. A baffle capable of adjusting the edge width is arranged on the cabinet; a belt pulley matched with the transmission crankshaft, an oil inlet, a needle pitch adjuster and the lower threading device are arranged on a side surface of the cabinet; the needle plate and the cloth feeding teeth are arranged on an upper end face of the cabinet; the cloth feeding teeth are matched with the needle plate; the needle is matched with the transmission crankshaft through a needle clamp and a telescopic rod; the upper and lower bent needles are connected with the transmission crankshaft respectively and are in synchronous cross motion; the upper threading device, a presser foot lifter device and a presser foot are arranged on the base; and the presser foot is matched with the needle plate and the cloth feeding teeth. The invention has the advantages that: the carpet overedge machine head is simple in structure, the base occupies small space, and radian leathers and thread fabrics have an enough movable space in the process of sewing the radian leathers and thread fabrics; and the upper and lower threading devices are provided with matched thread releasing devices so as to be convenient to use.

The invention discloses a novel container fireproof and dampproof floor. The floor comprises a middle material layer, a waterproof layer and a surface pulp layer which are sequentially connected from bottom to top, a mixing layer is arranged between the waterproof layer and the surface pulp layer, and an aluminum foil layer is arranged at the lower portion of the middle material layer. The floor is simple in overall structure and is made of light materials and formed by compositing various materials, thereby having many functions. The aluminum foil layer adopts soft aluminum foil as raw materials of an aluminum foil layer, and the soft aluminum foil has the advantages of being high in mechanical strength, low in weight, free of heat adhesion, not likely to be corroded, good in barrier property, dampproof, waterproof, high in air impermeability and the like.

The invention discloses an air-flowing type dynamic liquid-phase micro-extracting method for online derivatization. The air-flowing type dynamic liquid-phase micro-extracting method comprises the following steps of: introducing a derivatization reagent to an extracting system when air-flowing type dynamic liquid-phase micro-extracting is carried out on a sample, so that a substance to be tested is quickly subjected to a derivatization reaction in an extracting process; and completing a sample pre-treatment process when a derivatization product enters an extract phase. The air-flowing type dynamic liquid-phase micro-extracting method for online derivatization is a novel sample pre-treatment method which is highly integrated on the basis of the original air-flowing type dynamic liquid-phase micro-extracting method. Compared with the original air-flowing type dynamic liquid-phase micro-extracting method, the air-flowing type dynamic liquid-phase micro-extracting method disclosed by the invention can be used for simplifying the two-step process including extraction and derivatization onto one step, and can be used for the substance which is easy to thermally decompose and is difficult to extract by adopting the original technology. Compared with other derivatization reaction, the derivatization reaction in the air-flowing type dynamic liquid-phase micro-extracting method can be carried out without an independent step and solvent condition. Moreover, the whole technology has the characteristics of being simple to operate, quick, on-line, efficient, integrated, easy to link with a chromatographic system and capable of analyzing in a quantitative manner.

The invention discloses an automatic hanging sparking plug for use in running of an electric trolley bus. The automatic hanging sparking plug is characterized in that an integral enclosed non-hooking design is adopted; two conducting transverse rods are taken as sparking plug conductors, and are connected through a convex insulating cap; the outer ends of the conducting transverse rods are connected with a wiring rod through insulating brackets, thereby forming an enclosed triangle; a conducting transverse rod groove of a certain width is formed between the insulating brackets extending upwards from both sides of the sparking plug and the insulating cap projecting in the middle. Wire hanging can be performed conveniently by correcting the electric trolley bus below a power cable, lifting the wiring rod and putting the insulating cap in the middle of the sparking plug between two power cables in a sleeving manner; on the contrary, the wires can be separated easily by descending the wiring rod. The integral enclosed non-hooking design is adopted for the sparking plug, so that an electric wire is prevented from being hooked even hanging fails. The automatic hanging sparking plug has the beneficial effects that once the integral automatic hanging sparking plug is arranged on the electric trolley bus, hanging and separation running can be performed conveniently without worrying about the problem of falling of the electric wire or damage to the electric wire by hooking. Therefore, the degree of freedom of running of the electric trolley bus is greatly increased, the application range is expanded, an open type electric road net is built, and various passenger cars, trucks and saloon cars can be modified into electric vehicles or hybrid power vehicles.

The invention provides a permanent-magnet synchronous motor adopting a concentrated winding, comprising a stator and a rotor. An air gap is formed between the stator and the rotor, the stator comprises a stator core and a stator winding, and the rotor comprises a rotor core, a rotating shaft and a permanent-magnet steel magnet. The permanent-magnet synchronous motor is characterized in that that stator winding is an integrated winding, the rotor is an eccentric rotor, and the air gap between the stator and the rotor is an uneven air gap. The invention has the advantages of less materials consumption, simple structure, convenient production and light weight, reduces the additional loss of motor energy and improves the utilization rate of the motor energy.

The invention relates to a hall permanent magnet brushless high-speed direct current motor for a vacuum molecular pump. The hall permanent magnet brushless high-speed direct current motor comprises a motor rotor and a motor stator, wherein the motor rotor comprises an alloy steel mandrel, a permanent magnet and an alloy sheath; the motor stator comprises a stator core, a solenoid winding, an outgoing line, a hall element, a hall sensor, a hall circuit board, a hall mounting base, epoxy resin and an outer motor sleeve; the hall mounting base is located at one side, toward the outgoing line, of the stator core; a pin of the hall element is welded to the hall circuit board; a copper screen shielding layer coats the periphery of the hall circuit board; the opposite position of the hall sensor is rigidly fixed through the hall mounting base; a signal line of the hall sensor is arranged at one end of the outgoing line; a heavy-current motor three-phase current outgoing line is arranged at the other end of the outgoing line; a shield protection sleeves the outgoing line of the hall sensor; the motor stator is filled and sealed by the epoxy resin after being installed; and the outer motor sleeve is used for ensuring the assembly accuracy of the motor stator.

The invention discloses a multilayer composite wooden waterproof floor. The multilayer composite wooden waterproof floor comprises a plate body; the plate body comprises wooden layers and a mixed layer; the wooden layers are installed on the upper side and the lower side of the mixed layer correspondingly; and a waterproof layer is further installed outside one side of the wooden layer. According to the multilayer composite plate structure, a base material layer is the mixed layer, the wooden layers are installed on the upper side and the lower side of the mixed layer correspondingly, and the waterproof layer is installed on one side of the wooden layer to serve as the bottom of the whole floor. By installing the mixed layer for bonding and reinforcing between the two wooden layers, strength of the structure of the whole floor is improved; a good anti-flaming effect can be provide through the mixed layer, and a function of fire spreading prevention is achieved; and the purpose of independently and additionally installing the waterproof layer is to further improve the water-proof and moisture-proof effects of the whole floor, and problems such as wrapping caused by water invasion in the floor are avoided.